Updated: 04/26/2017 by Computer Hope
unregistered memory

UDIMM (unregistered memory) is a type of memory chip used mostly in desktop and laptop computers. More commonly called unbuffered memory, UDIMMs run faster than RDIMM (registered memory). They cost less, but are not quite as stable as RDIMMs. The DDR memory chips in use today are a type of UDIMM.

Memory terms, RDIMM